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Physical Values

NOTE:
  • ECM is located behind the instrument assist lower panel. For this inspection, remove passenger side instrument lower panel.
  • Specification data are reference values and are measured between each terminal and ground.
  • Pulse signal is measured by CONSULT-III.
CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.
ECM INPUT/OUTPUT VOLTAGE CHART

Terminal No. Wire color Description Condition Value (Approx.)
+ - Signal name Input/Output
1 Ground W A/F sensor 1 heater (bank 1) Output [Engine is running]
  • Warm-up condition
  • Idle speed (More than 140 seconds after starting engine)
G04886622Courtesy of NISSAN MOTOR CO., U.S.A.
2 Ground G Throttle control motor (Open) (bank 1) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
G04886623Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
G04886624Courtesy of NISSAN MOTOR CO., U.S.A.
3 Ground R Throttle control motor relay power supply (bank 1) Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
4 Ground BR Throttle control motor (Close) (bank 1) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: In the middle of releasing operation
G04886625Courtesy of NISSAN MOTOR CO., U.S.A.
5 Ground GR A/F sensor 1 heater (bank 2) Output [Engine is running]
  • Warm-up condition
  • Idle speed (More than 140 seconds after starting engine)
G04886622Courtesy of NISSAN MOTOR CO., U.S.A.
6 Ground SB Exhaust valve timing control magnet retarder (bank 1) Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14V)
[Engine is running]
  • Warm-up condition
  • Around 2, 500 rpm while the engine speed is rising
G05207843Courtesy of NISSAN MOTOR CO., U.S.A.
7 Ground Y Exhaust valve timing control magnet retarder (bank 2) Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14V)
[Engine is running]
  • Warm-up condition
  • Around 2, 500 rpm while the engine speed is rising
G05207843Courtesy of NISSAN MOTOR CO., U.S.A.
8 Ground B ECM ground - [Engine is running]
  • Idle speed
 Body ground
11
12
15
16
19
20		 Ground GR
L
V
G
SB
Y		 Ignition signal No. 4
Ignition signal No. 3
Ignition signal No. 5
Ignition signal No. 2
Ignition signal No. 6
Ignition signal No. 1		 Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G05207845Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
G04886628Courtesy of NISSAN MOTOR CO., U.S.A.
17 Ground P Heated oxygen sensor 2 heater (bank 1) Output [Engine is running]
  • Engine speed: Below 3, 600 rpm after the following conditions are met
    • Engine: after warming up
    • Keeping the engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load
G04886629Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3, 600 rpm
 BATTERY VOLTAGE (11 - 14V)
18 Ground W Intake valve timing control solenoid valve (bank 1) Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14V)
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000rpm
G05207848Courtesy of NISSAN MOTOR CO., U.S.A.
21 Ground GR EVAP canister purge volume control solenoid valve Output [Engine is running]
  • Idle speed
  • Accelerator pedal: Not depressed even slightly, after engine starting
G04886631Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: About 2, 000 rpm (More than 100 seconds after starting engine)
G04886632Courtesy of NISSAN MOTOR CO., U.S.A.
22 Ground LG Fuel pump relay Output [Ignition switch: ON]
  • For 1 second after turning ignition switch ON

[Engine is running]		 0 - 1.5V
[Ignition switch: ON]
  • More than 1 second after turning ignition switch ON
 BATTERY VOLTAGE (11 - 14V)
24 Ground BR ECM relay (Self shut-off) Output [Engine is running]
[Ignition switch: OFF]
  • A few seconds after turning ignition switch OFF
 0 - 1.5V
[Ignition switch: OFF] 
  • More than a few seconds after turning ignition switch OFF
 BATTERY VOLTAGE (11 - 14V)
25 Ground O Throttle control motor relay Output [Ignition switch: ON → OFF] 0 - 1.0V
↓
BATTERY VOLTAGE (11 - 14V)
↓
0V
[Ignition switch: ON] 0 - 1.0V
29 Ground G Intake valve timing control solenoid valve (bank 2) Output [Engine is running]
  • Warm-up condition
  • Idle speed
 BATTERY VOLTAGE (11 - 14V)
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000rpm
G05207848Courtesy of NISSAN MOTOR CO., U.S.A.
30 Ground Y Throttle position sensor 1 (bank 1) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 More than 0.36V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 Less than 4.75V
31 Ground R Throttle position sensor 1 (bank 2) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 More than 0.36V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 Less than 4.75V
33 Ground SB Heated oxygen sensor 2 heater (bank 2) Output [Engine is running]
  • Engine speed: Below 3, 600 rpm after the following conditions are met
    • Engine: after warming up
    • Keeping the engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load
G04886629Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped

[Engine is running]
  • Engine speed: Above 3, 600 rpm
 BATTERY VOLTAGE (11 - 14V)
34 Ground L Throttle position sensor 2 (bank 1) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 Less than 4.75V
[Ignition switch: ON] 
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 More than 0.36V
35 Ground W Throttle position sensor 2 (bank 2) Input [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
 Less than 4.75V
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
 More than 0.36V
37 Ground LG Crankshaft position sensor (POS) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G04886633Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2, 000 rpm
G05207854Courtesy of NISSAN MOTOR CO., U.S.A.
40 Ground R Sensor ground
[Throttle position sensor (bank 1)]		 - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
43 Ground G Sensor power supply
[Throttle position sensor (bank 2)]		 - [Ignition switch: ON] 5V
44 Ground B Sensor power supply
[Throttle position sensor (bank 1)]		 - [Ignition switch: ON] 5V
46 Ground R Sensor power supply
[Crankshaft position sensor (POS)]		 - [Ignition switch: ON] 5V
47 Ground Y Sensor ground
[Crankshaft position sensor (POS)]		 - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
48 Ground B Sensor ground
[Throttle position sensor (bank 2)]		 - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
49 Ground L Throttle control motor (Close) (bank 2) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: In the middle of releasing operation
G04886625Courtesy of NISSAN MOTOR CO., U.S.A.
50 Ground V Throttle control motor (Open) (bank 2) Output [Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully depressed
G04886623Courtesy of NISSAN MOTOR CO., U.S.A.
[Ignition switch: ON]
  • Engine stopped
  • Selector lever: D (A/T) or 1st (M/T)
  • Accelerator pedal: Fully released
G04886624Courtesy of NISSAN MOTOR CO., U.S.A.
52 Ground R Throttle control motor relay power supply (bank 2) Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
53 Ground P Ignition switch Input [Ignition switch: OFF] 0V
[Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
57 Ground L A/F sensor 1 (bank 1) Input [Ignition switch: ON] 2.2V
58 Ground GR Exhaust valve timing control position sensor (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G05207858Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
G05207859Courtesy of NISSAN MOTOR CO., U.S.A.
59 Ground O Camshaft position sensor (PHASE) (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G04886635Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2, 000 rpm
G04886636Courtesy of NISSAN MOTOR CO., U.S.A.
60 Ground R Sensor power supply [Camshaft position sensor (PHASE) (bank 1), Exhaust valve timing control position sensor (bank 1), Power steering pressure sensor] - [Ignition switch: ON] 5V
61 Ground R A/F sensor 1 (bank 1) Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 1.8V
Output voltage varies with air fuel ratio.
62 Ground G Exhaust valve timing control position sensor (bank 2) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G05207862Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
G05207859Courtesy of NISSAN MOTOR CO., U.S.A.
63 Ground SB Camshaft position sensor (PHASE) (bank 2) Input [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G04886635Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed: 2, 000 rpm
G04886636Courtesy of NISSAN MOTOR CO., U.S.A.
64 Ground W Sensor power supply [Camshaft position sensor (PHASE) (bank 2), Exhaust valve timing control position sensor (bank 2), Battery current sensor] - [Ignition switch: ON] 5V
65 Ground V A/F sensor 1 (bank 2) Input [Ignition switch: ON] 2.2V
66 Ground LG A/F sensor 1 (bank 2) Input [Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
 1.8V
Output voltage varies with air fuel ratio.
67 Ground P Intake air temperature sensor (bank 1) Input [Engine is running] 0 - 4.8V
Output voltage varies with intake air temperature.
68 Ground LG Sensor ground [Mass air flow sensor (bank 1), Intake air temperature sensor (bank 1)] - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
69 Ground W Knock sensor (bank 2) Input [Engine is running]
  • Idle speed
 2.5V(1)
71 Ground Y Engine coolant temperature sensor Input [Engine is running] 0 - 4.8V
Output voltage varies with engine coolant temperature.
72 Ground - Sensor ground (Knock sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
73 Ground W Knock sensor (bank 1) Input [Engine is running]
  • Idle speed
 2.5V(1)
76 Ground W Heated oxygen sensor 2 (bank 1) Input [Engine is running]
  • Revving engine from idle to 3, 000 rpm quickly after the following conditions are met
    • Engine: after warming up
    • Keeping the engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load
 0 - 1.0V
77 Ground SB Mass air flow sensor (bank 1) Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.8 - 1.1V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 rpm
 1.4 - 1.7V
78 Ground G Engine oil temperature sensor Input [Engine is running] 0 - 4.8V
Output voltage varies with engine oil temperature.
79 Ground GR Mass air flow sensor (bank 2) Input [Engine is running]
  • Warm-up condition
  • Idle speed
 0.8 - 1.1V
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 500 rpm
 1.4 - 1.7V
80 Ground O Heated oxygen sensor 2 (bank 2) Input [Engine is running]
  • Revving engine from idle to 3, 000 rpm quickly after the following conditions are met
    • Engine: after warming up
    • Keeping the engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load
 0 - 1.0V
81
82
85
86
89
90		 Ground R
V
BR
W
GR
O		 Fuel injector No. 3
Fuel injector No. 6
Fuel injector No. 2
Fuel injector No. 5
Fuel injector No. 1
Fuel injector No. 4		 Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G04886620Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Warm-up condition
  • Engine speed: 2, 000 rpm
G04886621Courtesy of NISSAN MOTOR CO., U.S.A.
83 Ground G Intake air temperature sensor (bank 2) Input [Engine is running] 0 - 4.8V
Output voltage varies with intake air temperature.
84 Ground B Sensor ground (Heated oxygen sensor 2, Engine coolant temperature sensor, Engine oil temperature sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
87 Ground Y Power steering pressure sensor Output [Engine is running]
  • Steering wheel: Being turned
 0.5 - 4.5V
[Engine is running]
  • Steering wheel: Not being turned
 0.4 - 0.8V
88 Ground LG Sensor ground [Exhaust valve timing control position sensor (bank 1), Exhaust valve timing control position sensor (bank 2)] - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
91 Ground SB Battery current sensor Input [Engine is running]
  • Battery: Fully charged(2)
  • Idle speed
 2.6 - 3.5V
92 Ground P Sensor ground [Camshaft position sensor (PHASE) (bank 2)] - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
93 Ground P Power supply for ECM (Back-up) Input [Ignition switch: OFF] BATTERY VOLTAGE (11 - 14V)
94 Ground LG Sensor ground [Mass air flow sensor (bank 2)] - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
95 Ground G Sensor ground (Battery current sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
96 Ground B Sensor ground [Camshaft position sensor (PHASE) (bank 1), Power steering pressure sensor] - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
97 Ground R Accelerator pedal position sensor 1 Input [Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully released
 0.5 - 1.0V
[Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully depressed
 4.2 - 4.8V
98 Ground P Accelerator pedal position sensor 2 Input [Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully released
 0.25 - 0.50V
[Ignition switch: ON]
  • Engine stopped
  • Accelerator pedal: Fully depressed
 2.0 - 2.5V
99 Ground L Sensor power supply (Accelerator pedal position sensor 1) - [Ignition switch: ON] 5V
100 Ground W Sensor ground (Accelerator pedal position sensor 1) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
101 Ground SB ICC steering switch (models with ICC system) Input [Ignition switch: ON]
  • ICC steering switch: OFF
 4.3V
[Ignition switch: ON]
  • MAIN switch: Pressed
 0V
[Ignition switch: ON]
  • CANCEL switch: Pressed
 1.3V
[Ignition switch: ON]
  • RESUME/ACCELERATE switch: Pressed
 3.7V
[Ignition switch: ON]
  • SET/COAST switch: Pressed
 3V
[Ignition switch: ON]
  • DISTANCE switch: Pressed
 2.2V
101 Ground SB ASCD steering switch (models with ASCD system) Input [Ignition switch: ON]
  • ASCD steering switch: OFF
 4V
[Ignition switch: ON]
  • MAIN switch: Pressed
 0V
[Ignition switch: ON]
  • CANCEL switch: Pressed
 1V
[Ignition switch: ON]
  • RESUME/ACCELERATE switch: Pressed
 3V
[Ignition switch: ON]
  • SET/COAST switch: Pressed
 2V
102 Ground LG EVAP control system pressure sensor Input [Ignition switch: ON] 1.8 - 4.8V
103 Ground G Sensor power supply (Accelerator pedal position sensor 2) - [Ignition switch: ON] 5V
104 Ground GR Sensor ground (Accelerator pedal position sensor 2) - [Ignition switch: ON]
  • Warm-up condition
  • Idle speed
 0V
105 Ground L Refrigerant pressure sensor Input [Engine is running]
  • Warm-up condition
  • Both A/C switch and blower fan motor switch: ON (Compressor operates)
 1.0 - 4.0V
106 Ground W Fuel tank temperature sensor Input [Engine is running] 0 - 4.8V
Output voltage varies with fuel tank temperature.
107 Ground BR Sensor power supply (EVAP control system pressure sensor) - [Ignition switch: ON] 5V
108 Ground Y Sensor ground (ASCD/ICC steering switch) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
109 Ground G (A/T) BR (M/T) PNP switch Input [Ignition switch: ON]
  • Selector lever: P or N (A/T), Neutral (M/T)
 BATTERY VOLTAGE (11 - 14V)
[Ignition switch: ON]
  • Selector lever: Except above
 0V
110 Ground R Engine speed output signal Output [Engine is running]
  • Warm-up condition
  • Idle speed
    NOTE: The pulse cycle changes depending on rpm at idle
G04886641Courtesy of NISSAN MOTOR CO., U.S.A.
[Engine is running]
  • Engine speed is 2, 000 rpm
G04886642Courtesy of NISSAN MOTOR CO., U.S.A.
111 Ground O Sensor power supply (Refrigerant pressure sensor) - [Ignition switch: ON] 5V
112 Ground V Sensor ground (EVAP control system pressure sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
113 Ground P CAN communication line Input/Output - -
114 Ground L CAN communication line Input/Output - -
116 Ground W Sensor ground (Refrigerant pressure sensor) - [Engine is running]
  • Warm-up condition
  • Idle speed
 0V
117 Ground V Data link connector Input/Output [Ignition switch: ON]
  • GST: Disconnected
 5V - BATTERY VOLTAGE (11 - 14V)
121 Ground LG EVAP canister vent control valve Output [Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
122 Ground P Stop lamp switch Input [Ignition switch: OFF]
  • Brake pedal: Fully released
 0V
[Ignition switch: OFF]
  • Brake pedal: Slightly depressed
 BATTERY VOLTAGE (11 - 14V)
123
124		 Ground B
B		 ECM ground - [Engine is running]
  • Idle speed
 Body ground
125 Ground R Power supply for ECM Input [Ignition switch: ON] BATTERY VOLTAGE (11 - 14V)
126 Ground BR ICC brake switch (models with ICC system) ASCD brake switch (models with ASCD system) Input [Ignition switch: ON]
  • Brake pedal: Slightly depressed
 0V
[Ignition switch: ON]
  • Brake pedal: Fully released
 BATTERY VOLTAGE (11 - 14V)
127
128		 Ground B
B		 ECM ground - [Engine is running]
  • Idle speed
 Body ground
*: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
(1) This may vary depending on internal resistance of the tester.
(2) Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to "HOW TO HANDLE BATTERY ".
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